Home / 19,520.20-26,941.52-11,136.70

Finding the Fourth Proportional to 19,520.20, 26,941.52 and 11,136.70

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Solution

The fourth proportional to 19,520.20, 26,941.52 and 11,136.70 is: 15,370.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,520.20 : 26,941.52 = 11,136.70 : x
  2. Step 2: Convert to fraction form
    19,520.20/26,941.52 = 11,136.70/x
  3. Step 3: Cross multiply
    19,520.20x = 26,941.52 × 11,136.70
  4. Step 4: Simplify right side
    19,520.20x = 300,039,625.78
  5. Step 5: Solve for x
    x = 300,039,625.78/19,520.20
  6. Step 6: Final answer
    x = 15,370.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.